Alpha-InnoTec SWC 170H, SWC 140H/K, SWC 230/K, SWC 330, SWC 330/K Operating Manual
...
We reserve the right to modify technical specifications without prior notice.
UK830300/170717 © Alpha-InnoTec GmbH
COMPACT
Operating Manual
Heat Pumps
BRINE/WATER
UK
SWC – Series
2
We reserve the right to modify technical specifications without prior notice.
UK830300/170717 © Alpha-InnoTec GmbH
Please read first
This operating manual provides important information on
the handling of the unit. It is an integral part of the product
and must be stored so that it is accessible in the immediate
vicinity of the unit. It must remain available throughout the
entire service life of the unit. It must be handed over to subsequent owners or operators of the unit.
Read the operating manual before working on or operating
the unit. This applies in particular to the chapter on safety.
Always follow all instructions completely and without restrictions.
It is possible that this operating manual may contain instructions that seem incomprehensible or unclear. In case of
questions or uncertainty, contact the factory customer service department or the manufacturer’s local service partner.
Since this operating manual was written for several different
models of the unit, always comply with the parameters for
the respective model.
This operating manual is intended only for persons assigned
to work on or operate the unit. Treat all constituent parts
confidentially. The information contained herein is protected by copyright. No part of this operating manual may
be reproduced, transmitted, copied, stored in electronic data
systems or translated into another language, either wholly
or in part, without the express written permission of the
manufacturer.
Symbols
The symbols used in the operating manual have the following meaning:
Information for operators.
Information or instructions for qualified techni-
cians.
DANGER!
Failure to observe this information could
result in immediate danger to life and limb.
WARNING!
Failure to observe this information could
result in serious personal injury.
CAUTION!
Failure to observe this information could
result in moderate or slight personal injury.
CAUTION.
Failure to observe this information could
result in material damage.
NOTICE.
Emphasized information.
Reference to other sections of the operating
manual.
Reference to other instructions of the manufac-
turer.
3
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Contents
INFORMATION FOR OPERATORS AND
QUALIFIED TECHNICIANS
PLEASE READ FIRST ..............................................................................2
SYMBOLS ..................................................................................................
2
INTENDED USE ......................................................................................
4
EXCLUSION OF LIABILITY .................................................................
4
EC CONFORMITY .................................................................................
4
SAFETY ......................................................................................................
4
CUSTOMER SERVICE .............................................................................
5
WARRANTY / GUARANTEE ..............................................................
5
DISPOSAL .................................................................................................
5
INFORMATION FOR OPERATORS
FUNCTIONING PRINCIPLE OF THE HEAT PUMP SYSTEM .....6
AREA OF UTILIZATION .......................................................................
6
OPERATION .............................................................................................
6
COOLING FUNCTION ........................................................................
7
CARE OF THE UNIT ..............................................................................
8
MAINTENANCE OF THE UNIT .........................................................
8
MALFUNCTIONS ...................................................................................
8
INSTRUCTIONS FOR QUALIFIED TECHNICIANS
SCOPE OF DELIVERY ............................................................................ 9
INSTALLATION AND ASSEMBLY .......................................................
9
Installation area ................................................................................. 9
Transport to installation location .................................................. 9
Installation ........................................................................................10
Installation of the hydraulic connections ...................................11
Insulating the hydraulic connections...........................................13
Safety components .........................................................................13
Expansion vessels ............................................................................13
ELECTRICAL CONNECTIONS ........................................................
14
RINSING AND FILLING THE UNIT .................................................
16
Rinsing and filling the heat source...............................................17
Rinsing and filling the heating circuit ..........................................17
Cleaning and rinsing of unit components ..................................17
BLEEDING ...............................................................................................
17
Bleeding the unit .............................................................................17
Bleeding the circulating pump of the heating circuit ...............
17
Bleeding the circulating pump of the heat source ...................
17
Bleeding the heat source
for a unit without cooling function ......................................17
Bleeding the heat source
for a unit with cooling function ............................................18
OVERFLOW VALVE ...............................................................................
18
INSTALLATION OF THE HEAT PUMP
AND HEATING REGULATOR. ...................................................
19
MOUNTING AND REMOVAL OF THE SCREEN .........................
19
INSTALLATION OF THE ROOM THERMOSTAT
FOR THE COOLING FUNCTION ............................................20
HOT-WATER TANK ..............................................................................
21
COMMISSIONING
................................................................................22
DISMANTLING ......................................................................................
23
TECHNICAL DATA/SCOPE OF DELIVER
Y
SWC 60H(/K) – SWC 120H(/K) ................................................24
SWC 140H(/K) – SWC 330(/K) .................................................26
PERFORMANCE CURVE
S
Heating Capacity/COP / Power Consumption / Free Compressio
n
SWC 60H(/K) ..................................................................................
28
SWC 70H(/K) ..................................................................................29
SWC 80H(/K) ..................................................................................30
SWC 100H(/K) ................................................................................31
SWC 120H(/K) ................................................................................32
SWC 140H(/K) ................................................................................33
SWC 170H(/K) ................................................................................34
SWC 230(/K) ...................................................................................35
SWC 330(/K) ...................................................................................36
DIMENSIONAL DRAWINGS AND CLEARANCE DIMENSION
S
Size 1: Dimensional drawings .......................................................38
Size 1: Clearance dimensions .......................................................39
Size 2: Dimensional drawings .......................................................40
Size 2: Clearance dimensions .......................................................41
TERMINAL DIAGRAM
S
SWC 60H(/K) – SWC 170H(/K) ................................................42
SWC 230(/K) – SWC 330(/K) .....................................................43
CIRCUIT DIAGRAM
S
SWC 60H(/K) – SWC 80H(/K) ...................................................44
SWC 100H(/K) – SWC 170H(/K) ..............................................46
SWC 230(/K) ...................................................................................48
SWC 330(/K) ...................................................................................50
APPENDIX
EC DECLARATION OF CONFORMITY ........................................52
GENERAL CHECKLIST .......................................................................
53
COMPLETION REPORT FOR HEAT PUMP SYSTEMS ................
55
NOTES .....................................................................................................
57
CUSTOMER SERVICE
Addresses in the event of a service call.....................................58
4
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UK830300/170717 © Alpha-InnoTec GmbH
Intended use
The unit may be used only for the intended use. This means:
•
for heating.
• for heating hot water.
• for cooling.
(Availability of the cooling function depends on
the model).
“Cooling function” section.
The unit may be operated only within its technical parameters.
Overview “Technical data/scope of delivery”.
NOTICE:
Notify the responsible power supply com-
pany of the use of a heat pump or heat pump
system.
Exclusion of liability
The manufacturer will not be liable for damage resulting
from unauthorized use of the unit.
The manufacturer’s liability will also be voided in the following cases:
•
if work is performed on the unit and its compo-
nents in a manner that does not comply with the
terms of this operating manual;
•
if work is performed on the unit and its components in an improper manner;
•
if work is performed on the unit that is not de-
scribed in this operating manual, and this work
was not expressly approved in writing by the
manufacturer;
•
if the unit or components in the unit are modified,
redesigned or removed without the express written permission of the manufacturer.
EC conformity
The unit bears the CE mark of conformity.
EC declaration of conformity
Safety
The unit is operational safe when used for the intended purpose. The construction and design of the unit conform to
the state of the art, all relevant DIN/VDE regulations and all
relevant safety regulations.
Every person who performs work on the unit must have
read and understood the operating manual prior to starting
any work. This also applies if the respective person has already worked with such a unit or a similar unit or has been
trained by the manufacturer.
Every person who performs work on the unit must comply
with the applicable accident prevention and safety regulations. This applies in particular to the wearing of personal
safety gear.
DANGER!
Unit operates under high electric voltage!
DANGER!
Only qualied technicians (trained heating,
cooling, refrigerant and electrical technicians) may perform work on the unit and its
components.
WARNING!
Observe safety labels on and in the unit.
DANGER!
Unit contains refrigerants!
WARNING!
Leaking refrigerant could result in personal
injury or material damage.
– Shut down unit.
– Ventilate installation location.
– Notify the manufacturer’s authorized
service center.
CAUTION.
For safety reasons:
Never disconnect the unit from the power
supply network.
5
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Customer service
For technical assistance, contact the factory customer service department or the manufacturer’s local service partner.
Overview “Customer service”.
Warranty / Guarantee
For warranty and guarantee conditions, please refer to the
purchase documents.
NOTICE:
Please contact your dealer concerning war-
ranties and guarantees.
Disposal
When decommissioning the unit, always comply with applicable laws, directives and standards for the recovery, recycling
and disposal of materials and components of cooling units.
“Dismantling”.
6
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UK830300/170717 © Alpha-InnoTec GmbH
Functioning principle of
the heat pump system
In a closed circuit, an environmentally compatible refrigerant is successively vaporized, condensed and liquefied. The
increase in pressure resulting from this process also causes
the temperature of the refrigerant to rise. This generates
high temperatures suitable for heating, for example by means
of floor or wall heating, or through radiators.
There are three ways to supply a heat pump with heat energy:
stored heat from the sun in the air, in the earth and in the
ground water. The heat generated from the respective heat
source (air, earth or water) and the heat pump is conveyed
to the heating system by means of a heat exchanger. Generally, water is used as a heating medium, and three types of
pumps - air/water, brine/water and water/water pumps – are
possible. A brine/water pump with floor heating, for example, takes about ¾ of the energy needed for heating from
the environment. Only about ¼ of the energy has to be supplied as electric power.
Example: drawing of a brine/water heat pump with floor
heating:
Area of utilization
Taking into consideration the ambient conditions, limits of
application and the applicable regulations, every heat pump
can be utilized in new or existing heating systems.
Overview “Technical data/scope of delivery”.
Operation
Your decision to purchase a heat pump or a heat pump
system is a long-term contribution to protecting the environment through low emissions and reduced primary
energy use.
You can operate and control the heat pump system with the
heat pump and heating regulator.
NOTICE:
Make sure that the control settings are cor-
rect.
Operating manual of the heat pump and heating
regulator.
To ensure that your heat pump or heat pump system operates efficiently and ecologically, the following are especially
important:
NOTICE:
Avoid unnecessarily high ow temperatures.
A lower ow temperature on the hot water
side increases the efciency of the system.
When letting in fresh air, do not leave windows open for an
extended period in order to save energy and reduce your
heating costs.
7
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UK830300/170717 © Alpha-InnoTec GmbH
Cooling function
The cooling function is available only for heat pumps with
the model designator K.
It is not possible to retrofit heat pumps for cooling without
this designator. For the model designator, please refer to the
purchase documents. It is also on the rating plate attached
to the outside of the unit.
The cooling function is based on the principle of passive
cooling. An existing low temperature level is mixed to a temperature above the dew point and transferred to the heating
medium by means of a heat exchanger. The heat pump remains switched off during cooling; only the circulating pumps
for the heating circuit and the heat source are in operation.
The cooling power depends on the heat source temperature, which varies seasonally. For example, if the ground
stored more heat toward the end of the summer, the cooling power of a brine/water pump is reduced.
The effectiveness of passive cooling is generally not comparable to that of an air conditioning system.
NOTICE:
The use of the passive cooling function re-
quires oor or wall heating.
THE ROOM THERMOSTAT FOR THE COOLING FUNCTION
The room thermostat is used to switch the cooling function on and off:
I Cooling function on
Cooling function off
The heat pump regulation program activates the cooling
function only if the following conditions are fulfilled:
•
Heat pump model must have integrated cooling
function.
•
Room thermostat for the cooling function must
be switched on.
•
Temperature of the heat source must be ≥ +5 °C.
•
Heat pump must not currently be occupied with
“heating” or “water heating”.
If the heat pump regulation program sends the
command “water heating” to the heat pump, the
cooling function of the heat pump automatically
stops as long as the water is heating.
•
The “Automatic” settings must be selected on
the heat pump and heating regulator under “Operating mode: cooling”.
•
The outdoor temperature release set at the heat
pump and heating regulator must be exceeded.
Operating manual of the heat pump and heating
regulator.
8
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UK830300/170717 © Alpha-InnoTec GmbH
Care of the unit
The outer surfaces of the unit can be cleaned with a damp
cloth and household cleaning products.
Do not use cleaning or care products that contain abrasives,
acids and/or chlorine. Such products would destroy the surfaces and could also damage the technical components of
the unit.
Maintenance of the unit
The cooling circuit of the heat pump requires no regular
maintenance.
The components of the heating circuit and the heat source
(valves, expansion vessels, circulating pumps) should be inspected annually by a qualified technician.
It is a good idea to have a maintenance contract with a
heating installation company. The company will conduct the
required maintenance at regular intervals.
Malfunctions
In the event of a malfunction, you can detect the cause of
the malfunction via the diagnostic program of the heat pump
and heating regulator.
Operating manual of the heat pump and heating
regulator.
DANGER!
Service and repair work on the components
of the unit may be performed only by customer service personnel authorized by the
manufacturer.
Overview “Customer service”.
9
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UK830300/170717 © Alpha-InnoTec GmbH
Scope of delivery
Example of scope of delivery:
1 Compact unit
2 Screen
3 Vibration decouplers (only
for size 1 units)
4 Expansion vessel for heat circuit
5 Safety components for heat
circuit and heat source
6 Package with heat pump and heating
regulator, outdoor temperature
sensor, seals, sylomer strips, cap
valve and wall mount for heating
circuit expansion vessel, room
thermostat for cooling function
(only for models with designator
K), compensators (only for size 2
units; in additional cardboard box)
Proceed as follows:
Inspect delivery for outwardly visible signs of
damage…
Check to make sure that delivery is complete.
Any defects or incorrect deliveries must be claimed
immediately.
NOTICE:
Note the model.
Overview “Technical data/scope of delivery” or
rating plate on unit.
Installation and assembly
Observe the following when performing all work:
NOTICE:
Always comply with applicable accident pre-
vention regulations, with applicable statutory regulations, ordinances and directives.
WARNING!
The heat pump or heat pump system may
be installed and assembled only by a qualied
technician!
NOTICE:
Observe the sound levels of the respective
model.
Overview “Technical data/scope of delivery”,
“Sound” section.
INSTALLATION AREA
CAUTION.
Install the heat pump only indoors.
The installation area must be frost-free and dry. It must meet
the requirements of DIN EN 378. It must also fulfill applicable local regulations.
TRANSpORT TO INSTALLATION LOCATION
To avoid damage during transport, you should transport the
unit to the final installation location in its original packaging (with angle bracket on the wooden pallet), using a lifting
truck.
If it is not possible to transport the unit to the final installation location using a lifting truck, you can also transport the
heat pump using a hand truck.
DANGER!
Several people are required to transport the
unit. Do not underestimate the weight of the
heat pump.
Overview “Technical data/scope of delivery”, “Gen-
eral unit data” section.
10
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UK830300/170717 © Alpha-InnoTec GmbH
INSTALLATION
DANGER!
Several people are required to install the
unit.
NOTICE:
Take into account the size of the unit.
Overview “Technical data/scope of delivery”, “Gen-
eral unit data” section.
NOTICE:
Always comply with required clearance di-
mensions.
Overview “Dimensional drawings” and “Clearance
dimensions” for the respective size.
Proceed as follows at the installation location:
Remove angle bracket, transport and packaging ma-
terial from the unit…
Dispose of angle bracket, transport and packaging
material properly and in accordance with ecological
principles.
Set unit on a solid and level, preferably sound-insu-
lated surface…
Compensate for minor unevenness using the pro-
vided sylomer strips…
The sylomer strips also provide for added stability
of the heat pump. They absorb sound and vibrations
transmitted to the underlying surface.
Place the sylomer strips under the heat pump as
follows:
•
Tip the unit slowly and carefully to one side…
CAUTION.
Never tilt the unit more than a maximum of
45°.
DANGER!
The unit can tip when being removed from
the wooden pallet and during transport with
a hand truck. This can result in personal
injury and damage to the unit.
– Take suitable precautionary measures
to eliminate the danger of tipping.
We recommend removing the front panel to reduce the
weight of the unit for further transport.
Loosen quick-release screws for the front panel.
Turn counter-clockwise 90°…
Lift front panel and set aside in a safe place.
DANGER!
Make sure to secure unit against slipping
during transport.
CAUTION.
Never use components and hydraulic con-
nections on the unit for purposes of transport.
CAUTION.
Do not damage the hydraulic connections
under any circumstances.
CAUTION.
Do not tilt the unit more than a maximum of
45° (in any direction).
11
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UK830300/170717 © Alpha-InnoTec GmbH
WARNING!
Hands and ngers could be crushed during
the following tasks!
Secure unit in raised position so that it cannot accidentally tip back into the original position.
•
Place one sylomer strip flush with the respective
outer edge of the unit…
•
Slowly and carefully tip the unit back into the origi-
nal position…
Repeat steps
•
through
•
for the remaining
sides of the unit.
Place sylomer strips at right angles to each other,
with no space in between:
Operating side
INSTALLATION OF THE HydRAULIC CONNECTIONS
CAUTION.
The heat source system must be designed
according to the specications of the heat
pump guide.
Heat pump guide and “Hydraulic connection” in-
structions.
NOTICE:
Check to make sure that the diameters and
lengths of the pipes for the heating circuit
and the heat source are sufciently dimensioned. The free compression of the circulating pumps must be able to deliver at least the
minimum ow rate required for your model.
Overview “Technical data/scope of delivery”, “Heat
source” and “Heating circuit” sections.
DANGER!
Disconnect unit from power supply if it is
connected to the power supply!
Proceed as follows:
Install shut-off devices at the heating circuit…
Install shut-off devices at the heat source.
NOTICE:
During installation of the shut-off devices, the
compressor and liqueer of the heat pump
can be rinsed, if necessary.
CAUTION!
The condenser may be rinsed only by cus-
tomer service personnel authorized by the
manufacturer.
CAUTION.
When installing the connections, always
secure the connections on the unit from
twisting, in order to prevent damage to the
copper pipes in the interior of the unit.
12
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UK830300/170717 © Alpha-InnoTec GmbH
The connections for the heating circuit or the heat source
are located on the back of the unit:
1 Hot water outflow (forward flow)
2 Hot water inflow (return flow)
3 Heat source inflow (return flow)
4 Heat source outflow (forward flow)
INSTALLATION ON SIzE 1 UNITS
Proceed as follows:
We recommend installing a contamination filter
(screen size 0.9 mm) on the heat source inflow
(return flow) connection…
Connect the pipes of the heating circuit and the
heat source with the corresponding connections on
the back of the unit. Use vibration decouplers.
These are included in the scope of delivery. They must be
installed in order to prevent damage from vibrations to the
pipes.
Arrange the vibration decouplers in a quarter circle, as
shown in the following drawing:
A straight or extended hose arrangement for the vibration
decoupler is not permitted.
13
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UK830300/170717 © Alpha-InnoTec GmbH
INSULATING THE HydRAULIC CONNECTIONS
The vibration decouplers and the pipes of the heat source
must be insulated so that they are sealed against vapor diffusion.
NOTICE:
Insulate in accordance with applicable local
standards and directives.
SAFETy COMpONENTS
The safety components are packed in the extra box.
The connections for the safety components are located at
the top rear on the outside of the unit.
1 Connection for heating
circuit safety component
2 Connection for heat source
safety component
Proceed as follows:
Install safety component for the heating circuit…
Install safety component for the heat source.
ExpANSION vESSELS
The expansion vessel for the heat source is integrated in
the unit.
The expansion vessel for the heating circuit and the corresponding cap valve are included in the scope of delivery. They
must be integrated in the heating circuit on-site in compliance with the applicable standards and directives.
INSTALLATION ON SIzE 2 UNITS
The included compensators must be used for connection
to the pipes:
The compensators also serve as vibration decouplers.
The compensators are packed in the extra box.
Proceed as follows:
We recommend installing a contamination filter
(screen size 0.9 mm) on the heat source inflow
(return flow) connection…
Screw the compensators by hand onto the connec-
tions on the unit until they bear against the rubber
gasket…
Screw the compensators by hand onto the pipes of
the heating circuit and the heat source until they
bear against the rubber gasket…
Using a suitable tool (e.g. a pipe wrench) to tighten
all connections one or two turns to achieve a tight
seal.
Do not overtighten. The rubber part of the com
pensators must not become twisted (torsion). This
could cause malfunctions and even serious damage
to the unit.
14
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UK830300/170717 © Alpha-InnoTec GmbH
2 Size 2:
Switch cabinet closed.
Insert load and control leads in the openings provided on the back of the unit…
1 Cable duct size 1:
2 Cable duct size 2:
Electrical connections
Observe the following when performing all work:
DANGER!
Electrical connections may be installed only
by qualied electricians.
DANGER!
Observe the relevant EN, VDE and/or appli-
cable local safety regulations during the installation and during all electrical work.
Observe the technical connection conditions
of the responsible power supply company!
Loosen quick-release screws for the front panel.
Turn counter-clockwise 90°…
Lift front panel and set aside in a safe place…
Open electric switch cabinet (inside the unit on the
left)…
1 Size 1:
Switch cabinet closed.
15
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UK830300/170717 © Alpha-InnoTec GmbH
Lay load and control leads in the cable duct inside
the unit all the way to the switch cabinet…
1 Size 1:
Switch cabinet opened.
2 Size 2:
Switch cabinet opened.
Install electrical connections according to the ter-
minal diagram and the circuit diagrams…
„Terminal diagrams” and “Circuit diagrams” for the
respective model.
DANGER!
Install electric connections only according
to the terminal diagram and the circuit diagrams that apply to your model.
CAUTION.
Ensure clockwise rotary eld of the load
power supply.
– An incorrect rotary eld of the con
denser during operation can cause
serious, irreparable damage to the condenser.
CAUTION.
Make sure to equip the power supply of the
heat pump with an all-pole circuit breaker.
The all-pole circuit breaker must have a contact gap
of at least 3mm.
CAUTION.
Make sure to equip the power supply of the
heat pump with a 3-pole automatic cut-out.
Note the level of the release current.
Overview “Technical data/scope of delivery”, “Elec-
tric” section.
After completion of all electrical installation work,
close the switch cabinet inside the unit…
Screw on the front panel of the unit if no further
installation work inside the unit is to be performed
immediately.
16
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UK830300/170717 © Alpha-InnoTec GmbH
SIzE 2:
1 Safety component for heating circuit
2 Safety component for heat source
3 Servo-motor at mixing valve (only
on units with model designator K)
4 Overflow valve
5 Circulating pump for heat source
6 Expansion vessel for heat source
7 Fill/empty cock for heat source
8 Circulating pump for heating circuit
9 Fill/empty cock for heating circuit
Rinsing and filling the unit
DANGER!
Unit must be disconnected from the power
supply.
Open unit if this has not already been done…
Electrical connection work and .
Obtain overview of the interior of the unit.
DANGER!
The electric switch cabinet inside the unit
must be closed with the cabinet’s cover!
SIzE 1:
1 Safety component for heating circuit
2 Safety component for heat source
3 Servo-motor at mixing valve (only
on units with model designator K)
4 Overflow valve
5 Electric heating element
6 Circulating pump for heat source
7 Circulating pump for heating circuit
8 Fill/empty cock for heat source
9 Expansion vessel for heat source
10 Fill/empty cock for heating circuit
17
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UK830300/170717 © Alpha-InnoTec GmbH
Bleeding
Proceed as follows:
Place a bleeder at the highest point of the heat source
in the heat source outflow (forward flow)…
If necessary, place a bleeder at the highest point of
the heat source in the heat source inflow (return
flow)…
Place a bleeder at the highest point of the heat-
ing circuit in the heating circuit outflow (forward
flow)…
If necessary, place a bleeder at the highest point
of the heating circuit in the heating circuit inflow
(return flow).
BLEEdING THE UNIT
The unit is bled automatically when the bleeders of the
safety components are open. If the heating circuit or heat
source is filled or emptied, the bleeding valves of the respective safety components open.
BLEEdING THE CIRCULATING pUMp OF THE HEATING
CIRCUIT
Loosen the screw-on cap in the middle of the circulating
pump.
BLEEdING THE CIRCULATING pUMp OF THE HEAT
SOURCE
Loosen the screw-on cap in the middle of the circulating
pump.
BLEEdING THE HEAT SOURCE FOR A UNIT wITHOUT
COOLING FUNCTION
Bleeding is conducted automatically by means of the integrated bleeding function in the safety component.
RINSING ANd FILLING THE HEAT SOURCE
Contamination and deposits in the heat source can cause
malfunctions.
Proceed as follows:
Rinse heat source system thoroughly…
Thoroughly mix the anti-freeze agent, available as an
accessory, with water at the required ratio. Add only
anti-freeze mixed with water to the heat source…
CAUTION.
The concentration of anti-freeze in the water
must be at least at the level specied for your
model.
Overview “Technical data/scope of delivery”, “Heat
source” section.
Check concentration of anti-freeze in the mix-
ture…
Fill heat source with the anti-freeze mixture.
RINSING ANd FILLING THE HEATING CIRCUIT
Contamination and deposits in the heating circuit can cause
malfunctions.
Rinse heating circuit system thoroughly…
Fill heating circuit.
CLEANING ANd RINSING OF UNIT COMpONENTS
CAUTION.
Unit components may be cleaned and rinsed
only by customer service personnel authorized by the manufacturer. Use only liquids
recommended by the manufacturer.
Rinsing of the liqueer with chemical clean
ing agents must be followed by neutralization of residue and intensive rinsing with
water. Always observe the technical data of
the manufacturer of the heat exchanger.
18
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UK830300/170717 © Alpha-InnoTec GmbH
•
Switch on the circulating pump of the heat source
and allow to run…
•
After 2 minutes, with the circulating pump running,
turn wrench clockwise until the regulator of the
servo-motor is at 100 %…
Leave at this setting for 2 minutes…
•
With the circulating pump running, turn wrench
counter-clockwise until the regulator of the servomotor is at 50 %…
Turning the regulator to 50 % means an even mix
-
ture in the 3-way mixing valve from A and B to AB.
Reset servo-motor of the mixing valve to automatic
as soon as bleeding is completed.
NOTICE:
Push switch on servo-motor up.
Overflow valve
Set the overflow valve so that the spread between the forward and return flow is ≤ 10K (set at the factory to 200
mbar and sealed by paint).
BLEEdING THE HEAT SOURCE FOR A UNIT wITH COOLING FUNCTION
The bleeding must be conducted manually.
Proceed as follows:
Release the servo-motor at the mixing valve inside
the unit…
Push switch on servo-motor down…
Adjust mixing valve…
Use the wrench included in the scope of delivery.
Alternatively: Use a size 6 Allen wrench.
•
Insert wrench in the servo-motor…
•
Turn wrench counter-clockwise until the regulator
of the servo-motor is at 0 %…
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